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Business Segments - (Details) $ in Thousands | 3 Months Ended
--- | ---
Jun. 30, 2019 USD ($) segment | Jul. 01, 2018 USD ($)
Segment Reporting Information [Line Items] |  |
Number of reportable segments | segment | 3 |
Net sales | $ 780,230 | $ 670,930
Intersegment sales | 52,403 | 45,559
Operating earnings by segment | 68,336 | 64,179
Restructuring charges | (2,372) | (1,739)
Energy Systems |  |
Segment Reporting Information [Line Items] |  |
Net sales | 435,843 | 324,018
Motive Power |  |
Segment Reporting Information [Line Items] |  |
Net sales | 344,387 | 346,912
Americas |  |
Segment Reporting Information [Line Items] |  |
Net sales | 517,110 | 392,574
Intersegment sales | 8,565 | 5,858
Operating earnings by segment | 54,356 | 47,736
Restructuring charges | (585) | 0
EMEA |  |
Segment Reporting Information [Line Items] |  |
Net sales | 203,198 | 210,494
Intersegment sales | 36,881 | 32,087
Operating earnings by segment | 15,711 | 17,203
Restructuring charges | (1,294) | (1,192)
Asia |  |
Segment Reporting Information [Line Items] |  |
Net sales | 59,922 | 67,862
Intersegment sales | 6,957 | 7,614
Operating earnings by segment | 641 | 1,505
Restructuring charges | (493) | 0
Asia | Inventory Adjustment |  |
Segment Reporting Information [Line Items] |  |
Restructuring charges | 0 | (526)
Asia | Fixed Asset Write-Off |  |
Segment Reporting Information [Line Items] |  |
Restructuring charges | $ 0 | $ (547)

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